ASM1816. Low Power, 3.3 V/3.0 V, P Reset, Active LOW, Open-Drain Output

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Low Power, 3.3 V/3.0 V, P Reset, Active LOW, Open-Drain Output Description The ASM1816 is a voltage supervisory device with low power, 3.3 V/3 V P Reset, active LOW, open drain output.

1 Low Power, 3.3 V/3.0 V, P Reset, Active LOW, Open-Drain Output Description The ASM1816 is a voltage supervisory device with low power, 3.3 V/3 V P Reset, active LOW, open drain output. Maximum supply current over temperature is a low 15 A (at 3.6 V). The ASM1816 generates an active LOW reset signal whenever the monitored supply is out of tolerance. A precision reference and comparator circuit monitor power supply (V CC ) level. Tolerance level options are 5%, 10%, 15% and 20%. When an out of tolerance condition is detected, an internal power fail signal is generated which forces an active LOW reset signal. After V CC returns to an in tolerance condition, the reset signal remains active for 150 ms to allow the power supply and system microprocessor to stabilize. The ASM1816 is designed with a open drain output stage and operates over the extended industrial temperature range. Devices are available in TO 92 and compact surface mount SOT 23 packages. Other low power products in this family include the ASM1810/11/12/15/17, ASM1233D and ASM1233M. Features Low Supply Current 20 A Maximum (5.5 V) 15 A Maximum (3.6 V) Automatically Restarts a Microprocessor after Power Failure 150 ms Reset Delay after V CC Returns to an In tolerance Condition Active LOW Power up Reset Precision Temperature compensated Voltage Reference and Comparator Eliminates External Components TO 92 and Compact Surface Mount SOT 23 Operating Temperature 40 C to +85 C Applications Set top Boxes Cellular Phones PDAs Energy Management Systems Embedded Control Systems Printers Single Board Computers SOT 23 3 LEAD CASE 527AG PIN CONFIGURATIONS V CC 1 2 ASM1816 R SOT 23 (Top View) (Top View) V CC GND TO 92 ASM1816 TO 92 3 LEAD CASE GND ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. 3 Semiconductor Components Industries, LLC, 2011 August, 2011 Rev. 3 1 Publication Order Number: ASM1816/D

2 Figure 1. Typical Application Figure 2. Block Diagram Table 1. PIN DESCRIPTION TO 92 SOT 23 Pin # Pin # Pin Name Description 1 1 Active LOW reset output 2 2 V CC Power supply input 3 3 GND Ground 2

3 Table 2. ABSOLUTE MAXIMUM RATINGS Parameter Min Max Unit Voltage on V CC (Note 1) V Voltage on (Note 1) 0.5 V CC V Operating Temperature Range C Soldering Temperature (for 10 sec) +260 C Storage Temperature C ESD rating HBM 2 KV MM 200 V Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. Voltages are measured with respect to ground. Table 3. DC ELECTRICAL CHARACTERISTICS (Unless otherwise noted, V CC = 1.2 V to 5.5 V and specifications are over the operating temperature range of 40 C to +85 C. All voltages are referenced to ground.) Parameter Symbol Conditions Min Typ Max Unit Supply Voltage V CC V Output Current I OL Output = 0.4 V, V CC > 2.7 V 10 ma Operating Current I CC V CC < 5.5 V, output open 8 20 A V CC 3.6 V, output open 6 15 V CC Trip Point V CCTP ASM1816R V ASM1816R ASM1816R ASM1816R Internal Pull up Resistor R P K Output Capacitance C OUT 10 pf V CC Detect to Low t RPD 2 5 s V CC Slew Rate (V CCTP (MAX) to V CCTP (MIN) t F (Note 2) 300 s V CC Slew Rate (V CCTP (MIN) to V CCTP (MAX) t R 0 ns V CC Detect to High t RPU t r = 5 s ms 2. The t F value is for reference in defining values for t RPD and should not be considered for proper operation or use. 3

4 Application Information Operation Power Monitor The ASM1816 detects out of tolerance power supply conditions. It resets a processor during power up, power down and issues a reset to the system processor when the monitored power supply voltage is below the reset threshold. When an out of tolerance V CC voltage is detected, the signal is asserted. On power up, is kept active (LOW) for approximately 150 ms after the power supply voltage has reached the selected tolerance. This allows the power supply and microprocessor to stabilize before is released. Figure 3. Timing Diagram: Power Up Figure 4. Timing Diagram: Power Down Table 4. FAMILY SELECTION GUIDE Part # Voltage (V) Time (ms) Output Stage Polarity ASM , 4.370, Push Pull LOW ASM , 4.350, Open Drain LOW ASM , 4.350, Push Pull HIGH ASM , 2.880, Push Pull LOW ASM , 2.720, 2.880, Open Drain LOW ASM , 2.880, Push Pull HIGH ASM1233D 4.625, 4.375, Open Drain LOW ASM1233M 4.625, 4.375, Open Drain LOW 4

5 PACKAGE DIMENSIONS SOT 23, 3 Lead CASE 527AG 01 ISSUE O D SYMBOL MIN NOM MAX A A1 b c E1 E D E E e e1 TOP VIEW e e1 L L1 θ 0.95 BSC 1.90 BSC 0.40 REF 0.54 REF 0º 8º A b A1 L1 L c SIDE VIEW END VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC TO

6 PACKAGE DIMENSIONS TO 92 (TO 226) CASE ISSUE AM R A N B STRAIGHT LEAD BULK PACK NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, CONTROLLING DIMENSION: INCH. 3. CONTOUR OF PACKAGE BEYOND DIMENSION R IS UNCONTROLLED. 4. LEAD DIMENSION IS UNCONTROLLED IN P AND BEYOND DIMENSION K MINIMUM. P L SEATING INCHES MILLIMETERS PLANE K DIM MIN MAX MIN MAX A B C D X X D G H G J H J K V C L N P SECTION X X R N V

7 Table 5. Part Number (Note 3) TIN LEAD DEVICES ASM1233D L 5 (ASM1233A 5) ASM1233D L 10 (ASM1233A 10) ASM1233D L 15 (ASM1233A 15) ASM1233D LZ 5 (ASM1233AZ 5) ASM1233D LZ 10 (ASM1233AZ 10) ASM1233D LZ 15 (ASM1233AZ 15) Output Voltage Tolerance Time Open Drain Output (Note 4) Polarity Marking (Note 5) % 350 ms LOW 3L TO 92 ASM1233D L % 350 ms LOW 3L TO 92 ASM1233D L % 350 ms LOW 3L TO 92 ASM1233D L % 350 ms LOW 4L SOT 223 RVLL % 350 ms LOW 4L SOT 223 RWLL % 350 ms LOW 4L SOT 223 RXLL ASM1233D % 350 ms LOW 3L TO 92 ASM1233D 5 ASM1233D % 350 ms LOW 3L TO 92 ASM1233D 10 ASM1233D % 350 ms LOW 3L TO 92 ASM1233D 15 ASM1233DZ % 350 ms LOW 4L SOT 223 RSLL ASM1233DZ % 350 ms LOW 4L SOT 223 RTLL ASM1233DZ % 350 ms LOW 4L SOT 223 RULL ASM1233M % 350 ms LOW 3L TO 92 ASM1233M 55 ASM1233M % 350 ms LOW 3L TO 92 ASM1233M 5 ASM1233M % 350 ms LOW 3L TO 92 ASM1233M 3 ASM1233MS % 350 ms LOW 8L SOIC ASM1233MS 55 ASM1233MS % 350 ms LOW 8L SOIC ASM1233MS 5 ASM1233MS % 350 ms LOW 8L SOIC ASM1233MS 3 LEAD FREE DEVICES ASM1233D L 5F % 350 ms LOW 3L TO 92 ASM1233D L 5F ASM1233D L 10F % 350 ms LOW 3L TO 92 ASM1233D L 10F ASM1233D L 15F % 350 ms LOW 3L TO 92 ASM1233D L 15F ASM1233D LZ 5F % 350 ms LOW 4L SOT 223 KVLL ASM1233D LZ 10F % 350 ms LOW 4L SOT 223 KWLL ASM1233D LZ 15F % 350 ms LOW 4L SOT 223 KXLL ASM1233D 5F % 350 ms LOW 3L TO 92 ASM1233D 5F ASM1233D 10F % 350 ms LOW 3L TO 92 ASM1233D 10F ASM1233D 15F % 350 ms LOW 3L TO 92 ASM1233D 15F ASM1233DZ 5F % 350 ms LOW 4L SOT 223 KSLL ASM1233DZ 10F % 350 ms LOW 4L SOT 223 KTLL ASM1233DZ 15F % 350 ms LOW 4L SOT 223 KULL ASM1233M 5F % 350 ms LOW 3L TO 92 ASM1233M 5F ASM1233M 55F % 350 ms LOW 3L TO 92 ASM1233M 55F ASM1233M 3F % 350 ms LOW 3L TO 92 ASM1233M 3F ASM1233MS 5F % 350 ms LOW 8L SOIC ASM1233MS 5F ASM1233MS 55F % 350 ms LOW 8L SOIC ASM1233MS 55F ASM1233MS 3F % 350 ms LOW 8L SOIC ASM1233MS 3F 3. Add /T to Part Number for Tape and Reel (i.e., ASM18xx x/t) 4. Internal 5.5 k resistor pull up 5. LL = Lot Code 7

8 Table 6. ORDERING INFORMATION Part Number (Note 6) Output Voltage (V) Tolerance (%) Device Summary Time (ms) Open Drain Output Stage (Note 7) SOT 23 Polarity Marking (Note 8) TIN LEAD DEVICES ASM1816R LOW RMLL ASM1816R LOW RNLL ASM1816R LOW RZLL ASM1816R LOW ROLL LEAD FREE DEVICES ASM1816R 5F LOW KMLL ASM1816R 10F LOW KNLL ASM1816R 15F LOW KZLL ASM1816R 20F LOW KOLL Part Number (Note 6) Output Voltage (V) Tolerance (%) Time (ms) Open Drain Output Stage (Note 7) TO 92 Polarity Marking TIN LEAD DEVICES ASM LOW ASM ASM LOW ASM ASM LOW ASM LEAD FREE DEVICES ASM1816 5F LOW ASM1816 5F ASM F LOW ASM F ASM F LOW ASM F 6. Add /T to Part Number for Tape and Reel (i.e., ASM18xx x/t) 7. Internal 5.5 k resistor pull up 8. LL = Lot Code ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Typical parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado USA Phone: or Toll Free USA/Canada Fax: or Toll Free USA/Canada orderlit@onsemi.com N. American Technical Support: Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: Japan Customer Focus Center Phone: ON Semiconductor Website: Order Literature: For additional information, please contact your local Sales Representative ASM1816/D

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